Pneumatic cushion.



No. 871,811. PATENTED NOV. 26, 1907. W. G. MOCULLOUGH.

PNEUMATIC CUSHION.

APPLICATION FILED JULY 13. 1906.

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Specification of Letters Patent.

Patented Nov. 2%}, 1907.

Application filed July 13,1906. Serial No. 826.129.

To all whom it"may concern, 4

Be it known that 1, WILLIAM C. MoCUL- LOUGH, a citizen of the UnitedStates, residing at Bucyrus, in the county of Crawford and State ofOhio, have invented certain new and useful Improvements in PneumaticCushions; and I do declare the following to be a full, clear, and exactdescri tion of the invention, such as will enable ot ers skilled intheart to which i appertains to make and use the same.

- This invention relates to improvements in pneumatic cushions forelastically distancing two structures, and more particularly for usebetween the axles and the bodies of vehicles for absorbing shocks, jarsand jolts.

The object of the invention is to rovide a shock absorbing device ofthis 0 aracter, which will. be simple, durable and comparativelyinexpensive in construction and very effective for the urpose intended,so that its use upon the ve 'cle will dispense with the necessity ofpneumatic tires u on the same.

l/Vith the above and other 0 jects in View,

my invention consists in the novel construe tion, combination and arranement of devices hereinafter described an claimed.

In the accompanying drawings,-Figure 1 is a View showing the applicationof my invention; Fig. 2 1s an end elevation of the cushioning device;Fig. 3 is a longitudinal sectional view through the same; and Fig. 4 isa transverse sectional view.

Referring to the drawings by numeral, 1

, denotes my improvedpneumatic cushion or shock absorber, which as shownin Fig. 1 is mounted between an axle 2 and a body-sup- ,porting spring 3of a vehicle of an description, but which may be interpose between anytwo structures which it is desired to elastically distance.

The device 1 consists of upper and lower cup-shaped members or holders4, 5, and an interposed, inflated, hollow body 6 of elastic material,such as rubber. The cushioning body 6 is of oval form or egg-shaped, andis being of substantially semi-oval form and,

provided with a suitable valve connection 7, through which air ma beintroduced into said body by means 01' a pump or the like.

The members 4, 5, are similar in shape, each having u on its inner facea similar-shaped seaiab, w llOll receives the body (5 and serves toretain the same therein.

Each of said members is formed upon its outer face with attaching;flanges 9, which may be secured u on the axle 2 and the s ring 3 bybolts, c ms or the like. The ower member 5 has formed at its oppositeend upwardlyextending guide lugs 11, formed with vertically-arrangedslots or openings 12, adapted to receive the reduced ends or pro'ections'13 upon the upper member 4. T e two each other, the u per member 4being 13 sliding in the slotted guides 11 on the member 5.

The construction, operation and advantages of the invention will bereadily understood from the fore oing description, taken in connectionwith t e accompanying drawmgs.

It will be seen that the device when interosed between the axle and thespring or ody of a ehicle will entirely absorb the short, Sudktefl jarsor jolts, so that pneumatic tires may be dispensed with. By making theinflated body 6 and its holders or mem bars 4, 5, of the form shown, itwill be seen that the body will be eiiectively retained between saidmembers, and there will be little or no tendency of its working out.

Various changes in the form, proportion and the minor details ofconstmction may be resorted to without departing from the principle, orsacrificing any of the advantages of the invention, as defined by theappended claims.

Having thus described my invention, what tors-Patent, is,

body-supporting spring, the herein described cushioning devicecomprising the pair of holders, each having an integral projection onits outer side, at its center, formed with an attaching flange, one ofsaid attaching flanges secured on the axle and the other secured to thecenter of the underside. of the spring, one of said'holders having endguide lugs provided with guide openings, and the other havingprojections operating in said guide openings and a cushioning bodybetween the said holders.

in tesiimony whereof I have hereunto set my hand in prescmze of twosubscribing wit- .ll-JSSGS. l WlLlJlAM (1. McOUlJLOUGl-l.

Witnesses:

II. B. W1|.r.soN, BENJ. G. Cows.

members 4, 5, are slidably engaged with guided in its vertica movementby its ends I claim as new, and desire to secure by Let-' In combinationwith a vehicle axle and a

